How to add to a string c++

How do you add to a string in C++?

Let’s the simple example of insertion when subpos and sublen are given.

  1. #include<iostream>
  2. using namespace std;
  3. int main()
  4. {
  5. string str1 = “C++ is a language”;
  6. string str2 = “programming”;
  7. cout<<“String contains :” <<str1<<‘n’;
  8. cout<<“After insertion, String is :”<< str1.insert(9,str2,0,11);

How do you add spaces to a string in C++?

scanf(” %[^n]s”,s); It will read string up to the newline character. Note the space before the ‘%’ because it will flush all the white spaces before the input string. If you will not put that then you will not get your desired result.

How do you append a number to a string in C++?

Concatenate an integer to a string object in C++

  1. C++11 – to_string() The most commonly used approach to concatenate an integer to a string object in C++ is to call std::to_string function which can return the string representation of a specified integer. …
  2. Using std::stringstream. …
  3. Using Boost’s lexical_cast.

How do you add elements to a string?


  1. Get the Strings and the index.
  2. Create a new String.
  3. Insert the substring from 0 to the specified (index + 1) using substring(0, index+1) method. Then insert the string to be inserted into the string. …
  4. Return/Print the new String.

How do you add a character to a string?

Using StringBuffer

You can use StringBuffer’s insert() method to add character to String at given position. Let’s see with the help of an example. As you can see, we have add char ‘2’ at position 4 to String “Javablog”. In case, you want thread safe code, then you should use StringBuffer instead of StringBuilder.

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How do you add a space in a string?

Hi You can simply use ” “. mystring = mystring + ” “; so it will add a space and actual value of variable my string will be “Webline “. you can find the space in output after Webline.

How do you get the length of a string in C++?

The C++ String class has length() and size() function. These can be used to get the length of a string type object. To get the length of the traditional C like strings, we can use the strlen() function. That is present under the cstring header file.

How do you read a string?

Different Methods to Read and Write String in C

  1. Read the string in C. Read string in C using gets() and fgets() functions. Read the strings in C using gets() Read string in C using fgets() …
  2. Display string in C. Display string in C using puts() or fputs() Display string in C using printf() with %s format code.
  3. String Input-Output using fscanf() and fprintf() functions.

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